Finding the Fourth Proportional to 374,438.40, 561,657.60 and 232,720.80
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Solution
The fourth proportional to 374,438.40, 561,657.60 and 232,720.80 is: 349,081.20
Step by Step Solution
- Step 1: Write the proportion equation
374,438.40 : 561,657.60 = 232,720.80 : x - Step 2: Convert to fraction form
374,438.40/561,657.60 = 232,720.80/x - Step 3: Cross multiply
374,438.40x = 561,657.60 × 232,720.80 - Step 4: Simplify right side
374,438.40x = 130,709,405,998.08 - Step 5: Solve for x
x = 130,709,405,998.08/374,438.40 - Step 6: Final answer
x = 349,081.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.